prop 六级托福GRE专八

The shortwall ladder prop mining method namely strip extraction has been more extensively applied currently in small coal mine of Shaanxi province.

短壁刀柱采煤法即条带开采,目前在陕西省小煤矿开采中较泛应用。

Act like a spoiled child prop recommends: Block almanac desk, return childhood to keep diarial time.

卡通书桌，回到童年写日记的年代。

The mailman propped his bicycle up against the wall and put the mail into the mailbox.

电员把自行车靠在墙上把件到信箱里。

I am not sure if these props will stay in long enough to do the work.

这些柱能否维到工作结束, 我对此没有把握。

A swarthy boy opened a book and propped it nimbly under the breastwork of his satchel.

一个面色黧黑的少年打开书本，麻利地将它在书包这座胸墙底下。